Halal work

Dear scholars, As-Salaam `Alaykum. I will be graduating from high school soon inshaa’ Allah and heading to University. I find the career of a lawyer very interesting, and I wish to pursue it. Due to the fact we are supposed to pursue a career that helps the future of Islam. I was wondering, does Islam permit the career of a lawyer? Jazakum Allah khayran.

What is the Islamic rul ing regarding working with banks?

As-Salamu `alaykum. I work in a store whe re lottery tickets and pork sandwiches are sold. Due to my circumstances, it’s hard for me to find another job. Is it permissible to work there?

I work in a restaurant which serves alcohol and other Haram food too. My job is to set the table for the customers and to clear the table when they finish. Also, I have to offer cheese powder (which is not Halal) for the customers. I too get my share of the tips. Is it ok to work in such a place?